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Θ Set/clear system flag 117 (CHOOSE boxes vs. SOFT menus):
H @)FLAGS —„ —˜ @@CHK@
Θ In ALG mode,
SF(-117) selects SOFT menus
CF(-117) selects CHOOSE BOXES.
Θ In RPN mode,
117 \` SF selects SOFT menus
117 \` CF selects SOFT menus
Θ Change angular measure:
o To degrees: ~~deg`
o To radian: ~~rad`
Θ Special characters:
o Angle symbol (∠): ~‚6
o Factorial symbol (!): ~‚2
o Degree symbol (
o
): ~‚(hold)6
Θ Lock/unlock alpha keyboard:
o Lock alpha keyboard (upper case): ~~
o Unlock alpha keyboard (upper case): ~
o Lock alpha keyboard (lower case): ~~„~
o Unlock alpha keyboard (lower case): „~~
Θ Greek letters:
Alpha (α): ~‚a Beta (β): ~‚b
DELTA (Δ): ~‚c Delta (d): ~‚d
Epsilon (ε): ~‚e Rho (ρ): ~‚f
Mu (μ): ~‚m Lambda (λ): ~‚n
PI (Π): ~‚p Sigma (σ): ~‚s
Theta (θ): ~‚t Tau (t): ~‚u
Omega (ω): ~‚v